[Bug libstdc++/127540] std::swap(i, i) with debug iterators aborts

[fdumont at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127540

--- Comment #7 from François Dumont <fdumont at gcc dot gnu.org> ---
Created attachment 65817
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65817&action=edit
Fix proposal

What about fixing it this way ?

IMHO to detect that iterator's lifetime hasn't started yet is a compiler's job,
not _GLIBCXX_DEBUG mode one.